Open circulatory system is present in ?

1. Nereis

2. Ascidia

3. Octopus

4. Branchiostoma

 

Identify the following diagrams and these represent:

1. (a) radial symmetry, (b) bilateral symmetry

2. (a) bilateral symmetry, (b) radial symmetry

3. (a) asymmetrical, (b) radial symmetry

4. (a) bilateral symmetry, (b) asymmetrical

Bioluminescence is well marked in member of which phylum?

1. Porifera

2. Echinodermata

3. Ctenophora

4. Platyhelminthes

Correct flow water current in sponges is:-

1. Ostia $\to$Osculum$\to$Spongocoel$\to$Outside

2. Osculum$\to$Spongocoel$\to$Ostia$\to$Outside

3. Ostia$\to$Spongocoel$\to$Osculum$\to$Outside

4. Osculum$\to$Ostia$\to$Spongocoel$\to$Outside

Tube within a tube plan is found in

1. Coelenterata

2. Ctenophora

3. Platyhelminthes

4. Aschelminthes

Which of the following is not correct comparison between Locusta (A) and Prawn (B), illustrated in the following diagram?

1. 1

2. 2

3. 3

4. 4

The first nuclear transplant from an animal to an egg that produced a normal adult was performed on a
(1) frog

(2) sheep

(3) cat

(4) dog

Which one of the following is not the function of cnidoblasts (sting cell)?

1. Anchorage

2. Defense

3. Caputure of prey

4. Reproduction

In Planaria, waste material of food digestion and Nitrogenous waste material removed from

1. Mouth and mouth

2. Body wall and body wall

3. Mouth and Flame-cell

4. Mouth and Body wall

Which of the following statements are true for the phylum-Chordata?

1. (c) and (a)
2. (a) and (b)
3. (b) and (c)
4. (d) and (c)